When St. John's tech startup Clockwork Fox Studios, the makers of Zorbit's Math Adventure, went looking for a partner to help them distribute their math education app in the United States, they weren't looking to sell the company.

But that's what happened, as the company has now been acquired by Carnegie Learning in Philadelphia.

The sale was finalized April 19, but the company's CEO Ed Martin won't say publicly how much the deal is worth.

Zorbit's Math Adventure is a game that teaches math to children in kindergarten to Grade 3 through play-based learning, and includes tools and resources for teachers.

"We were doing really well in Canada and we wanted to accelerate our way to the U.S. and we thought finding a like-minded company who already had a footprint in the U.S. was the best way to do that," said Martin.

He said the two companies are such a good fit for one another that it persuaded him to sell.

"They had a digital product for [Grade] 6-12 math. We are K -3, building [Grades] four, five and six," Martin said.

"They had a really good footprint in the U.S. and wanted to get into Canada. We were the other way around."

Martin said their offices on Harvey Road will become Carnegie Learning's Canadian headquarters and their first international office. He said he will become CEO of the company's Canadian office, and all 34 staff will remain.